Thousands of cars could be affected by DPF MOT rules

Thousands of vehicles currently on UK roads are expected to fail their MOTs after new rules come into force in February 2014.

testers are expected to carry out a visual check

There are numerous reasons why DPFs are removed. Some are taken off to enhance performance, while some garages will offer to remove them rather than let the customer face the expense of replacement. It is also possible that some owners do not realise their DPF has been removed, and are therefore driving their vehicle illegally.

The Department of Transport states: ""It is an offence under the Road vehicles (Construction and Use) Regulations (Regulation 61a(3))1 to use a vehicle which has been modified in such a way that it no longer complies with the air pollutant emissions standards it was designed to meet." Removal of DPFs could also lead to insurance policies being declared void.

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This week I will start my comment with a plea. I would love to hear from any MOT testers who have failed a car or van for not having a DPF fitted, since the new testing regulations came in nearly six months ago.